Boku no Hero Academia Smash Tap Model ripping problem

[Akiko]

I want these game models for making some papercrafts. I am quite new to model extraction.

So I used asset studio to view the files and these are some assets I managed to extract. As you can see the files are in .u3d and some assets in .dat format ,but I dont know how to procede from here.It would be great if anyone could guide us.

Thank you!